Horseshoe with self-sharpening calks



(N 0 Model.)

H. O. SAGENGK HOR'SESHOE WITH SELF SHARPENING O-ALKS.

No. 487,645. Patented D60. 6, 1892.

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UNITED STATES PATENT OFFICE.

HALVOR O. SAGENG, OF DALTON, MINNESOTA.

HORSESHOE WITH SELF-SHARPENING CALKS.

SPECIFICATION forming part of I Letters Patent No. 487,645, dated December 6, 1892.

Application filed July 26, 1892. Serial No. 441,280. (No model.)

use the same.

This invention relates to horseshoes, and more especially to the calks thereon, and the object of the same is to produce an improved calk capable of longer wear and of more ready attachment to the shoe than those heretofore constructed.

To this end the invention consists, broadly, of a calk comprising an iron body and a steel core seated therein and having a shank extending above the body and pointed where it enters the shoe, and specifically of the details of construction and the manner of connecting such calk with the ordinary shoe, all as hereinafter more fully described and claimed, and as illustrated on the accompanying sheet of drawings, wherein-- Figure 1 is a general perspective view of a horseshoe provided with my improved calk. Figs. 2 and 3 are verticalsections of Fig. 1 on the lines 2 2 and 3 3, respectively. Fig. 4 is a perspective detail of the members of the calk slightly separated.

Referring to the said drawings, the letter H designates an ordinaryhorseshoe, which is usually of iron possessing a greater or less degree of hardness. Beneath the toe of this shoe it is often desired to locate a calk for use inwet or icy weather. The calkwhichI employ consists of an iron body I, tapering slightly from its upper to its lower edge and having within it a cavity 0, extending from the lower edge nearly to the upper edge, and a hole or opening 0, extending from the longitudinal center of said cavity up through the upper edge of the body. Into this body is passed a steel core S, whose own body or main portion is of a size to accurately fit the cavity 0, but from whose upper edge extends a reduced shank R, which for a short distance is of a size to fit the hole 0, but whose extremity P is pointed, and the length of this shank is such that when the core is in place the point P shall extend above the body I for a dis tance slightly less than the thickness of the shoe. These parts can be made in any suitable manner and in a number of sizes and varieties to correspond to the various shoes to which they are to be attached.

It is common in horseshoes to employ steel calks, and some of such calks have integral steel points which are driven into the iron of the shoe to connect the calk therewith. It is also common to provide iron calks having steel cores, and the upper ends of these iron calks are screwed into or otherwise secured to the shoe. \Vith my improved calk the manner of attachment is as follows: A suitable hole is formed in the lower face of the shoe at the desired point of attachment and the calk, as above described, is brought into position and its point P driven into said hole. The shoe and calk are then subjected to the proper heat and the parts welded together, and it will be found that the welding process not only connects the point with the shoe and the upper edge of the body with the shoe, but it also connects the steel core with the body. which surrounds it. It will therefore be obvious that in the single operation of attaching the calk to a shoe the parts of the calks are connected to each other and, I thus avoid the necessity for repeated operations of this character.

The uses and advantages of a calk of this construction are well known to those familiar with the art. It has been found desirable to have a steel core within an iron body, so that as the latter wears away more readily than the former the lower edge of the steel will be useful in cutting into ice, while the surrounding and tapering body will serve to strengthen the core in the same manner as the wooden point of a pencil strengthens its lead.

Without limiting myself to the precise details of construct-ion, the sizes and proportions of parts, or the exact manner of connecting them, whatI claim as new is- 1. A horseshoe-calk consisting of an iron body having a recess opening through its lower edge and a hole reduced longitudinally of the recess from which it extends through the upper edge of the body, and a steel core fitting said recess and having a reduced shank fitting said hole extending above the body and pointed, as and for the purpose set forth.

2. A horseshoe-call; consisting of a steel core having a reduced shank rising from the center of its upper edge and an iron body surrounding said core on its sides, standing flush with the lower edge of said core, covering the upper edge thereof, except Where said shank passes through the body, and having a fiat upper face terminating short of the upper end of said steel shank, whereby the latter projects above theiron body, as and for the purpose set forth.

3. A horseshoe-calk consisting of an iron body having an elongated recess opening through the lower edge of the body through; out the length of the recess and a reduced hole opening through the upper edge of said body from the center of the length of said recess, and a steel core whose body accurately fits said recess with its lower edge 'flush with that of the iron body, said core having an integral shank rising through said hole and accurately fitting the same above which its sides converge to a smooth point at its upper extremity, in combination with an iron horseshoe having a hole in its lower face of sufficient size to fully receive said point and permit the upper edge of the iron body to strike the lower face of the shoe, the parts being constructed, combined, and connected substantially as described, and for the purpose set forth.

In testimony whereof I at'fix my signaturein presence of two witnesses.

HALVOR O. SAGENG.

\Vitnesses:

HANS O. SAGENG, THEO. M. HEFTY. 

